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OFFICIAL WEBSITE FOR THE
CONTRA COSTA MINERAL & GEM SOCIETY

CCMGS FIELD TRIP INFORMATION

Below you can find information on our club-sponsored field trips, plus other trips and events related to the CFMS and AFMS.

SWIPE RIGHT TO SEE PAST FIELD TRIPS
SCROLL RIGHT AND SEE GALLERY TO SEE PAST CCMGS OUTINGS AND FIELD TRIPS AND LEARN MORE ABOUT OUR EXPERIENCES
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ROYAL PEACOCK MINE

August 2024

LOCATION

Denio, NV

MINERALS COLLECTED

Black fire opal, limbcasts

READ FIELD TRIP REPORT HERE

BLACK DIAMOND MINES TOUR

February 2024

LOCATION

Antioch, CA

ACTIVITY

Tour guide led exploration of historic local mines

READ FIELD TRIP REPORT HERE

MT. DIABLO DONNER CREEK CRAWL

March 2024

LOCATION

Clayton, CA

MINERALS COLLECTED

Jaspers, quartz in serpentine, etc.

READ FIELD TRIP REPORT HERE

MARIPOSA COUNTY OUTING

April 2023

LOCATION

Mariposa, CA

MINERALS COLLECTED

Garnet, staurolite, etc. and museum visit

SEE PICTURES IN GALLERY

LAKE COUNTY OUTING

May 2019

LOCATION

Middleton, CA

MINERALS COLLECTED

Jasper, jade, rhyolite, agate, river rocks, etc.

NO FIELD TRIP REPORT

CCMGS takes safety very seriously. All members must sign a field trip waiver prior to participating in any club-sponsored field trips or outings.

We ask all members to review and retain a copy of our safety recommendations and basic field trip information for their records. Members can  print, sign, and bring their waiver to the field trip or submit it to the Field Trip Coordinator prior to the trip date.

Do you have recommendations for field trips or a club outing?

We are always looking for suggestions and invitations for club activities, please suggest them to us here or email the Field Trip Coordinator directly here.

The AFMS Code of Ethics

Click here to download or view the PDF document

  • I will respect both private and public property and will do no collecting on privately owned land without the owner's permission. 

  • I will keep informed on all laws, regulations or rules governing collecting on public lands and will observe them. 

  • I will, to the best of my ability, ascertain the boundary lines of property on which I plan to collect. 

  • I will use no firearms or blasting material in collecting areas. 

  • I will cause no willful damage to property of any kind - fences, signs, buildings, etc. 

  • I will leave all gates as found. 

  • I will build fires in designated or safe places only and will be certain they are completely extinguished before leaving the area. 

  • I will discard no burning material - matches, cigarettes, etc. 

  • I will fill all excavation holes which may be dangerous to livestock. 

  • I will not contaminate wells, creeks, or other water supplies. 

  • I will cause no willful damage to collecting material and will take home only what I can reasonably use. 

  • I will support the rockhound project H.E.L.P. (Help Eliminate Litter Please) and will leave all collecting areas devoid of litter, regardless of how found. 

  • I will cooperate with field-trip leaders and those in designated authority in all collecting areas. 

  • I will report to my club or federation officers, Bureau of Land Management or other authorities, any deposit of petrified wood or other materials on public lands which should be protected for the enjoyment of future generations for public educational and scientific purposes. 

  • I will appreciate and protect our heritage of natural resources. 

  • I will observe the "Golden Rule," will use "Good Outdoor Manners," and will at all times conduct myself in a manner which will add to the stature and public "image" of rockhounds everywhere.

The Contra Costa Mineral & Gem Society is a proud Member Club of the Cooperative Field Trip Chairmen Association and extends membership and access to its upcoming events to all current CCMGS members. See their complete list of upcoming field trips here.

The Contra Costa Mineral & Gem Society offers field trips and general outings exclusively to our Members to help achieve our mission of promoting earth science knowledge through first hand experiences. All CCMGS Members are expected to abide by the AFMS Code of Ethics (shown below) during all collection outings and field trips, despite club sponsorship. All field trips and outings are subject to cancellation at any time and all updates will be sent to Members using the email addresses given at time of application or renewal. Members can see in-depth details about future trips in the Members Only Area of our website here.

NEXT UPCOMING CCMGS FIELD TRIP

Are you a CCMGS Member interested in our next trip? Sign up by emailing our Field Trip Coordinator here.

NO FIELD TRIP CURRENTLY SCHEDULED.

Check back soon!

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